Well I'm very disappointed. I ordered a book and have never received it. I contacted them after three weeks and nothing. After a month I emailed them again and they sent me a tracking number to check on it. The number they gave me doesn't check out though. The post office says that number goes to a shipment under a different name and address than mine and I'm to contact the seller. I should have known something was up when I watched the videos. They are years old and in one the audio doesn't sync with the video. It's a shame that this is run like this. The others reviews here confirm what I've experienced. Stay away or get burned.